표 2 조망결과 데이터

구분 완전조망 부분조망 조망불가
6BL 34 (18%) 69 (37%) 86 (46%) 189 (100%)
7BL 12 (7%) 46 (26%) 117 (67%) 175 (100%)
8BL 10 (3%) 94 (28%) 226 (68%) 330 (100%)
9BL 5 (1%) 91 (27%) 317 (77%) 413 (100%)
61 (6%) 300 (27%) 746 (67%) 1,107 (100%)